Socket adapter for a drill



FIG. 1 is a top, front, and left end perspective view of a socket adapter for a drill showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a right end elevational view; and

FIG. 4 is a left end elevational view thereof. 

The ornamental design for a socket adapter for a drill, as shown and described. 